Add a new Environment.setPin() method. #31

Author: alranel

docs/readme.md

@@ -203,11 +203,13 @@ Initialize the sensor
 Using the Grove - Temperature & Humidity Sensor (DHT11) 
 DHT sensor can read Temperature and Humidity. 
 
-### DHTPIN
-By default, once you include the library it has been set to digital pin `3`, it can be changed by adding
+### setPin()
+By default, once you include the library it has been set to digital pin `3`. It can be changed by adding the following line before the call to `begin()`:
+
 ```cpp
-#define DHTPIN yourPin
+  Environment.setPin(yourPin);
 ```
+
 
 ### Initializing the sensor
 ```cpp

examples/Temp_and_Humidity/Temp_and_Humidity.ino

@@ -1,4 +1,3 @@
-//#define DHTPIN 3 // By default its connected to pin D3, it can be changed, define it before the #include of the library
 #include "Arduino_SensorKit.h"
 
 //uncomment line below if using DHT20
@@ -7,6 +6,10 @@
 void setup() {
   //uncomment line below if using DHT20
   //Wire.begin();
+
+  //uncomment line below if you're connecting your DHT20 to pin a different than 3
+  //Environment.setPin(4);
+
   Serial.begin(9600);
   Environment.begin();
 }

src/Arduino_SensorKit.cpp

@@ -12,7 +12,7 @@
 
 //Declare component's classes
 U8X8_SSD1306_128X64_NONAME_SW_I2C Oled(/* clock=*/ _PIN_SCL, /* data=*/ _PIN_SDA, /* reset=*/ U8X8_PIN_NONE);
-DHT Environment(DHTPIN,DHT11);
+SensorKit_DHT Environment(3,DHT11);
 DHT Environment_I2C(DHT20);
 SensorKit_LIS3DHTR Accelerometer;
 SensorKit_BMP280 Pressure;

src/Arduino_SensorKit.h

@@ -16,14 +16,22 @@
 #include "Grove_Temperature_And_Humidity_Sensor/DHT.h"                        // Temp & Humidity
 #include "U8x8lib.h"                    // OLED Display
 
-#ifndef DHTPIN
-  #define DHTPIN 3
-#endif
+class SensorKit_DHT;
 
 //Make the declared components from the .cpp to the sketch available
 extern U8X8_SSD1306_128X64_NONAME_SW_I2C Oled;
 extern SensorKit_LIS3DHTR Accelerometer;
 extern SensorKit_BMP280 Pressure;
-extern DHT Environment;
+extern SensorKit_DHT Environment;
 extern DHT Environment_I2C;
-#endif
+
+//Subclass DHT
+class SensorKit_DHT : public DHT {
+  public:
+  SensorKit_DHT(uint8_t pin, uint8_t type) : DHT(pin, type) {};
+  void setPin(uint8_t pin) {
+    Environment = SensorKit_DHT(pin, DHT11);
+  };
+};
+
+#endif